Year	PPG (DOD, current US$)
1978	9479143.5
1979	12761784
1980	17399965
1981	19516124
1982	22328049.2
1983	27845140.3
1984	36942054.2
1985	53512894
1986	70360063.1
1987	93863729.7
1988	100359335.7
1989	98545263
1990	103207041.7
1991	98447017.8
1992	92484282.8
1993	94270684.3
1994	98431415.7
1995	100259029.8
1996	100459955.3
1997	96547423.9
1998	113667750.4
1999	125275188.8
2000	120673425.9
2001	130866811.7
2002	150157267.4
2003	151284949.8
2004	155328417.4
2005	144185283.7
2006	150913558
2007	148073930.6
2008	137062371.6
2009	132907824.1
2010	125302082.6
2011	117847734.8
2012	110183786.4
2013	101129462.2
2014	89616008.4
2015	81224574.3
2016	86656714.9
2017	96507010.8
2018	96018483.9
2019	98075090.5
2020	124014124.9
2021	140830146.1
2022	154786295